[Info-vax] grounded MMJ cables

[Scott Dorsey]

chris  <chris-nospam at tridac.net> wrote:
>
>The only reason I can think of for the separate screen wire, apart
>for emc reasons, is to ensure that both ends chassis are at the same
>potential. The careless may use a 2 wire outlet at one end or the
>other and switchers always have leakage, so a good safety feature...

Precisely.  Check the original RS-232C standard, it is very intelligently
designed.  Many implementations have not been so well done.
--scott
-- 
"C'est un Nagra. C'est suisse, et tres, tres precis."